Schede e recensioni

Eico HF 87

Finale 35 watt a valvole vintage

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Produttore	Eico Usa
Caratteristiche	35 watt
Costo	-

Caratteristiche

Dal web:

The amp uses two pairs of push-pull EL-34 / 6CA7 power output tubes for 35 watts per channel. A pair of 6SN7 and a 12AX7/ ECC83 round out the rest of the tube complement. It has the power of two Eico HF-35 amps on a single chassis. Like the HF-35, the HF-87 uses cathode bias. Unlike the HF-35, the HF-87 uses silicon rectifiers for B+ and stacked electrolytic capacitors. A "surgistor" is wired at the input of the power supply to limit the initial power-up surge and protect the B+ diodes. The HF-87 uses a single triode (half the 12AX7) for input for each channel. An input of 0.38 volts is required for full output for each channel. By comparison, the HF-35 uses a pentode for input.

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